The jacket can raise and lower its own hood—without chips or batteries—and might one day help disabled wearers move.
in to our video call in a respectable, nondescript button-up shirt. His personal style may lean toward the conventional, but the Rice University mechanical engineer is here to tell me about his creative new fashion design. His team has made a shiny—without electronics. Specifically, the jacket can raise and lower its own hood at the push of a button, and it contains a simple 1-bit memory that stores the state of the hood.
Here’s where we need to emphasize the wildness of this design. The hoodie does not contain an Arduino or any semiconductor chips. It has no batteries. Preston and his team have cut pieces of commercial nylon taffeta fabric and glued them together to form inflatable pouches about half the size of a business card. Connecting the pouches with small soft tubes, they have embedded them into the jacket.
For example, the team created an air-based NOT gate. In an electronic circuit, a NOT gate receives some input—say a 1, corresponding to a high voltage—and changes it to a 0, or low voltage. In the hoodie’s case, the air going into a pouch might be at high pressure, and the pouch can convert it into a low pressure, or vice versa.
“I’m really happy to see people moving radically beyond the cutting edge in wearables,” says mechanical engineer Michael Wehner of the University of Wisconsin-Madison, who was not involved in the work. The team’s use of fabric and air-based logic, also known as pneumatic logic, is particularly novel. Wearables, like the
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